Home / 3,929,985.04-5,423,341.02-2,187,626.80

Finding the Fourth Proportional to 3,929,985.04, 5,423,341.02 and 2,187,626.80

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Solution

The fourth proportional to 3,929,985.04, 5,423,341.02 and 2,187,626.80 is: 3,018,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,985.04 : 5,423,341.02 = 2,187,626.80 : x
  2. Step 2: Convert to fraction form
    3,929,985.04/5,423,341.02 = 2,187,626.80/x
  3. Step 3: Cross multiply
    3,929,985.04x = 5,423,341.02 × 2,187,626.80
  4. Step 4: Simplify right side
    3,929,985.04x = 11,864,246,160,891.33
  5. Step 5: Solve for x
    x = 11,864,246,160,891.33/3,929,985.04
  6. Step 6: Final answer
    x = 3,018,903.64

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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.