Home / 5,386-8,077.36-1,875.04

Finding the Fourth Proportional to 5,386, 8,077.36 and 1,875.04

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Solution

The fourth proportional to 5,386, 8,077.36 and 1,875.04 is: 2,811.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386 : 8,077.36 = 1,875.04 : x
  2. Step 2: Convert to fraction form
    5,386/8,077.36 = 1,875.04/x
  3. Step 3: Cross multiply
    5,386x = 8,077.36 × 1,875.04
  4. Step 4: Simplify right side
    5,386x = 15,145,373.09
  5. Step 5: Solve for x
    x = 15,145,373.09/5,386
  6. Step 6: Final answer
    x = 2,811.99

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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.