Home / 1,151.20-1,726.17-457.17

Finding the Fourth Proportional to 1,151.20, 1,726.17 and 457.17

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Solution

The fourth proportional to 1,151.20, 1,726.17 and 457.17 is: 685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.20 : 1,726.17 = 457.17 : x
  2. Step 2: Convert to fraction form
    1,151.20/1,726.17 = 457.17/x
  3. Step 3: Cross multiply
    1,151.20x = 1,726.17 × 457.17
  4. Step 4: Simplify right side
    1,151.20x = 789,153.14
  5. Step 5: Solve for x
    x = 789,153.14/1,151.20
  6. Step 6: Final answer
    x = 685.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,152.20, 1,727.67 and 458.17
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.