Home / 5,390.08-7,440.24-3,294.40

Finding the Fourth Proportional to 5,390.08, 7,440.24 and 3,294.40

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Solution

The fourth proportional to 5,390.08, 7,440.24 and 3,294.40 is: 4,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.08 : 7,440.24 = 3,294.40 : x
  2. Step 2: Convert to fraction form
    5,390.08/7,440.24 = 3,294.40/x
  3. Step 3: Cross multiply
    5,390.08x = 7,440.24 × 3,294.40
  4. Step 4: Simplify right side
    5,390.08x = 24,511,126.66
  5. Step 5: Solve for x
    x = 24,511,126.66/5,390.08
  6. Step 6: Final answer
    x = 4,547.45

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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.