Home / 7,875.90-10,868.65-4,339.04

Finding the Fourth Proportional to 7,875.90, 10,868.65 and 4,339.04

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Solution

The fourth proportional to 7,875.90, 10,868.65 and 4,339.04 is: 5,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.90 : 10,868.65 = 4,339.04 : x
  2. Step 2: Convert to fraction form
    7,875.90/10,868.65 = 4,339.04/x
  3. Step 3: Cross multiply
    7,875.90x = 10,868.65 × 4,339.04
  4. Step 4: Simplify right side
    7,875.90x = 47,159,441.91
  5. Step 5: Solve for x
    x = 47,159,441.91/7,875.90
  6. Step 6: Final answer
    x = 5,987.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.