Home / 7,877.07-10,870.20-4,340.34

Finding the Fourth Proportional to 7,877.07, 10,870.20 and 4,340.34

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Solution

The fourth proportional to 7,877.07, 10,870.20 and 4,340.34 is: 5,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.07 : 10,870.20 = 4,340.34 : x
  2. Step 2: Convert to fraction form
    7,877.07/10,870.20 = 4,340.34/x
  3. Step 3: Cross multiply
    7,877.07x = 10,870.20 × 4,340.34
  4. Step 4: Simplify right side
    7,877.07x = 47,180,363.87
  5. Step 5: Solve for x
    x = 47,180,363.87/7,877.07
  6. Step 6: Final answer
    x = 5,989.58

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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.