Home / 4,281.08-6,421.72-1,359.40

Finding the Fourth Proportional to 4,281.08, 6,421.72 and 1,359.40

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Solution

The fourth proportional to 4,281.08, 6,421.72 and 1,359.40 is: 2,039.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.08 : 6,421.72 = 1,359.40 : x
  2. Step 2: Convert to fraction form
    4,281.08/6,421.72 = 1,359.40/x
  3. Step 3: Cross multiply
    4,281.08x = 6,421.72 × 1,359.40
  4. Step 4: Simplify right side
    4,281.08x = 8,729,686.17
  5. Step 5: Solve for x
    x = 8,729,686.17/4,281.08
  6. Step 6: Final answer
    x = 2,039.13

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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.