Home / 2,875.20-4,316-1,145.04

Finding the Fourth Proportional to 2,875.20, 4,316 and 1,145.04

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Solution

The fourth proportional to 2,875.20, 4,316 and 1,145.04 is: 1,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.20 : 4,316 = 1,145.04 : x
  2. Step 2: Convert to fraction form
    2,875.20/4,316 = 1,145.04/x
  3. Step 3: Cross multiply
    2,875.20x = 4,316 × 1,145.04
  4. Step 4: Simplify right side
    2,875.20x = 4,941,992.64
  5. Step 5: Solve for x
    x = 4,941,992.64/2,875.20
  6. Step 6: Final answer
    x = 1,718.83

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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.