Home / 3,127.16-4,316-1,800.61

Finding the Fourth Proportional to 3,127.16, 4,316 and 1,800.61

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Solution

The fourth proportional to 3,127.16, 4,316 and 1,800.61 is: 2,485.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.16 : 4,316 = 1,800.61 : x
  2. Step 2: Convert to fraction form
    3,127.16/4,316 = 1,800.61/x
  3. Step 3: Cross multiply
    3,127.16x = 4,316 × 1,800.61
  4. Step 4: Simplify right side
    3,127.16x = 7,771,432.76
  5. Step 5: Solve for x
    x = 7,771,432.76/3,127.16
  6. Step 6: Final answer
    x = 2,485.14

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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.