Home / 1,572.81-2,165.55-1,336.29

Finding the Fourth Proportional to 1,572.81, 2,165.55 and 1,336.29

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Solution

The fourth proportional to 1,572.81, 2,165.55 and 1,336.29 is: 1,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.81 : 2,165.55 = 1,336.29 : x
  2. Step 2: Convert to fraction form
    1,572.81/2,165.55 = 1,336.29/x
  3. Step 3: Cross multiply
    1,572.81x = 2,165.55 × 1,336.29
  4. Step 4: Simplify right side
    1,572.81x = 2,893,802.81
  5. Step 5: Solve for x
    x = 2,893,802.81/1,572.81
  6. Step 6: Final answer
    x = 1,839.89

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Find fourth proportional to 1,573.81, 2,166.93 and 1,337.29
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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.