Home / 3,151.48-4,724.91-1,509.18

Finding the Fourth Proportional to 3,151.48, 4,724.91 and 1,509.18

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Solution

The fourth proportional to 3,151.48, 4,724.91 and 1,509.18 is: 2,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.48 : 4,724.91 = 1,509.18 : x
  2. Step 2: Convert to fraction form
    3,151.48/4,724.91 = 1,509.18/x
  3. Step 3: Cross multiply
    3,151.48x = 4,724.91 × 1,509.18
  4. Step 4: Simplify right side
    3,151.48x = 7,130,744.29
  5. Step 5: Solve for x
    x = 7,130,744.29/3,151.48
  6. Step 6: Final answer
    x = 2,262.66

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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.