Home / 1,531.81-2,293.64-1,045.81

Finding the Fourth Proportional to 1,531.81, 2,293.64 and 1,045.81

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Solution

The fourth proportional to 1,531.81, 2,293.64 and 1,045.81 is: 1,565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.81 : 2,293.64 = 1,045.81 : x
  2. Step 2: Convert to fraction form
    1,531.81/2,293.64 = 1,045.81/x
  3. Step 3: Cross multiply
    1,531.81x = 2,293.64 × 1,045.81
  4. Step 4: Simplify right side
    1,531.81x = 2,398,706.42
  5. Step 5: Solve for x
    x = 2,398,706.42/1,531.81
  6. Step 6: Final answer
    x = 1,565.93

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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.