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Finding the Fourth Proportional to 1,581.04, 2,370.16 and 656.02

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Solution

The fourth proportional to 1,581.04, 2,370.16 and 656.02 is: 983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.04 : 2,370.16 = 656.02 : x
  2. Step 2: Convert to fraction form
    1,581.04/2,370.16 = 656.02/x
  3. Step 3: Cross multiply
    1,581.04x = 2,370.16 × 656.02
  4. Step 4: Simplify right side
    1,581.04x = 1,554,872.36
  5. Step 5: Solve for x
    x = 1,554,872.36/1,581.04
  6. Step 6: Final answer
    x = 983.45

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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.