Home / 1,039.64-1,444.33-1,030.12

Finding the Fourth Proportional to 1,039.64, 1,444.33 and 1,030.12

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Solution

The fourth proportional to 1,039.64, 1,444.33 and 1,030.12 is: 1,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.64 : 1,444.33 = 1,030.12 : x
  2. Step 2: Convert to fraction form
    1,039.64/1,444.33 = 1,030.12/x
  3. Step 3: Cross multiply
    1,039.64x = 1,444.33 × 1,030.12
  4. Step 4: Simplify right side
    1,039.64x = 1,487,830.90
  5. Step 5: Solve for x
    x = 1,487,830.90/1,039.64
  6. Step 6: Final answer
    x = 1,431.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.