Home / 4,288.08-6,432.50-1,690.40

Finding the Fourth Proportional to 4,288.08, 6,432.50 and 1,690.40

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Solution

The fourth proportional to 4,288.08, 6,432.50 and 1,690.40 is: 2,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.08 : 6,432.50 = 1,690.40 : x
  2. Step 2: Convert to fraction form
    4,288.08/6,432.50 = 1,690.40/x
  3. Step 3: Cross multiply
    4,288.08x = 6,432.50 × 1,690.40
  4. Step 4: Simplify right side
    4,288.08x = 10,873,498
  5. Step 5: Solve for x
    x = 10,873,498/4,288.08
  6. Step 6: Final answer
    x = 2,535.75

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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.