Home / 1,528.84-2,295.36-789.07

Finding the Fourth Proportional to 1,528.84, 2,295.36 and 789.07

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Solution

The fourth proportional to 1,528.84, 2,295.36 and 789.07 is: 1,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.84 : 2,295.36 = 789.07 : x
  2. Step 2: Convert to fraction form
    1,528.84/2,295.36 = 789.07/x
  3. Step 3: Cross multiply
    1,528.84x = 2,295.36 × 789.07
  4. Step 4: Simplify right side
    1,528.84x = 1,811,199.72
  5. Step 5: Solve for x
    x = 1,811,199.72/1,528.84
  6. Step 6: Final answer
    x = 1,184.69

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Double scale
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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.