Home / 8,740.40-13,113.63-2,897.46

Finding the Fourth Proportional to 8,740.40, 13,113.63 and 2,897.46

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Solution

The fourth proportional to 8,740.40, 13,113.63 and 2,897.46 is: 4,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.40 : 13,113.63 = 2,897.46 : x
  2. Step 2: Convert to fraction form
    8,740.40/13,113.63 = 2,897.46/x
  3. Step 3: Cross multiply
    8,740.40x = 13,113.63 × 2,897.46
  4. Step 4: Simplify right side
    8,740.40x = 37,996,218.38
  5. Step 5: Solve for x
    x = 37,996,218.38/8,740.40
  6. Step 6: Final answer
    x = 4,347.20

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1.5x scale

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.