Home / 2,139,534.40-2,952,170.40-1,375,412.80

Finding the Fourth Proportional to 2,139,534.40, 2,952,170.40 and 1,375,412.80

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Solution

The fourth proportional to 2,139,534.40, 2,952,170.40 and 1,375,412.80 is: 1,897,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,534.40 : 2,952,170.40 = 1,375,412.80 : x
  2. Step 2: Convert to fraction form
    2,139,534.40/2,952,170.40 = 1,375,412.80/x
  3. Step 3: Cross multiply
    2,139,534.40x = 2,952,170.40 × 1,375,412.80
  4. Step 4: Simplify right side
    2,139,534.40x = 4,060,452,955,941.12
  5. Step 5: Solve for x
    x = 4,060,452,955,941.12/2,139,534.40
  6. Step 6: Final answer
    x = 1,897,820.83

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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.