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Finding the Fourth Proportional to 1,088.81, 1,502.55 and 591.45

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Solution

The fourth proportional to 1,088.81, 1,502.55 and 591.45 is: 816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.81 : 1,502.55 = 591.45 : x
  2. Step 2: Convert to fraction form
    1,088.81/1,502.55 = 591.45/x
  3. Step 3: Cross multiply
    1,088.81x = 1,502.55 × 591.45
  4. Step 4: Simplify right side
    1,088.81x = 888,681.69
  5. Step 5: Solve for x
    x = 888,681.69/1,088.81
  6. Step 6: Final answer
    x = 816.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.