Home / 4,345.14-6,515.28-1,878.42

Finding the Fourth Proportional to 4,345.14, 6,515.28 and 1,878.42

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Solution

The fourth proportional to 4,345.14, 6,515.28 and 1,878.42 is: 2,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,345.14 : 6,515.28 = 1,878.42 : x
  2. Step 2: Convert to fraction form
    4,345.14/6,515.28 = 1,878.42/x
  3. Step 3: Cross multiply
    4,345.14x = 6,515.28 × 1,878.42
  4. Step 4: Simplify right side
    4,345.14x = 12,238,432.26
  5. Step 5: Solve for x
    x = 12,238,432.26/4,345.14
  6. Step 6: Final answer
    x = 2,816.58

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1.5x scale

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.