Home / 7,877.14-10,870.48-4,340.35

Finding the Fourth Proportional to 7,877.14, 10,870.48 and 4,340.35

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Solution

The fourth proportional to 7,877.14, 10,870.48 and 4,340.35 is: 5,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.14 : 10,870.48 = 4,340.35 : x
  2. Step 2: Convert to fraction form
    7,877.14/10,870.48 = 4,340.35/x
  3. Step 3: Cross multiply
    7,877.14x = 10,870.48 × 4,340.35
  4. Step 4: Simplify right side
    7,877.14x = 47,181,687.87
  5. Step 5: Solve for x
    x = 47,181,687.87/7,877.14
  6. Step 6: Final answer
    x = 5,989.70

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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.