Home / 3,121,079-4,307,089.02-1,690,295

Finding the Fourth Proportional to 3,121,079, 4,307,089.02 and 1,690,295

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Solution

The fourth proportional to 3,121,079, 4,307,089.02 and 1,690,295 is: 2,332,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,079 : 4,307,089.02 = 1,690,295 : x
  2. Step 2: Convert to fraction form
    3,121,079/4,307,089.02 = 1,690,295/x
  3. Step 3: Cross multiply
    3,121,079x = 4,307,089.02 × 1,690,295
  4. Step 4: Simplify right side
    3,121,079x = 7,280,251,035,060.90
  5. Step 5: Solve for x
    x = 7,280,251,035,060.90/3,121,079
  6. Step 6: Final answer
    x = 2,332,607.10

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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.