Home / 5,386.30-8,080.02-1,875.88

Finding the Fourth Proportional to 5,386.30, 8,080.02 and 1,875.88

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Solution

The fourth proportional to 5,386.30, 8,080.02 and 1,875.88 is: 2,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.30 : 8,080.02 = 1,875.88 : x
  2. Step 2: Convert to fraction form
    5,386.30/8,080.02 = 1,875.88/x
  3. Step 3: Cross multiply
    5,386.30x = 8,080.02 × 1,875.88
  4. Step 4: Simplify right side
    5,386.30x = 15,157,147.92
  5. Step 5: Solve for x
    x = 15,157,147.92/5,386.30
  6. Step 6: Final answer
    x = 2,814.02

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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.