Home / 2,156,349.32-2,975,532.12-1,189,479.53

Finding the Fourth Proportional to 2,156,349.32, 2,975,532.12 and 1,189,479.53

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Solution

The fourth proportional to 2,156,349.32, 2,975,532.12 and 1,189,479.53 is: 1,641,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,349.32 : 2,975,532.12 = 1,189,479.53 : x
  2. Step 2: Convert to fraction form
    2,156,349.32/2,975,532.12 = 1,189,479.53/x
  3. Step 3: Cross multiply
    2,156,349.32x = 2,975,532.12 × 1,189,479.53
  4. Step 4: Simplify right side
    2,156,349.32x = 3,539,334,555,036.33
  5. Step 5: Solve for x
    x = 3,539,334,555,036.33/2,156,349.32
  6. Step 6: Final answer
    x = 1,641,354.92

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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.