Home / 7,875.88-10,868.85-4,339.06

Finding the Fourth Proportional to 7,875.88, 10,868.85 and 4,339.06

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Solution

The fourth proportional to 7,875.88, 10,868.85 and 4,339.06 is: 5,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.88 : 10,868.85 = 4,339.06 : x
  2. Step 2: Convert to fraction form
    7,875.88/10,868.85 = 4,339.06/x
  3. Step 3: Cross multiply
    7,875.88x = 10,868.85 × 4,339.06
  4. Step 4: Simplify right side
    7,875.88x = 47,160,592.28
  5. Step 5: Solve for x
    x = 47,160,592.28/7,875.88
  6. Step 6: Final answer
    x = 5,987.98

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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.