Home / 7,881.84-10,877.20-4,345.18

Finding the Fourth Proportional to 7,881.84, 10,877.20 and 4,345.18

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Solution

The fourth proportional to 7,881.84, 10,877.20 and 4,345.18 is: 5,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.84 : 10,877.20 = 4,345.18 : x
  2. Step 2: Convert to fraction form
    7,881.84/10,877.20 = 4,345.18/x
  3. Step 3: Cross multiply
    7,881.84x = 10,877.20 × 4,345.18
  4. Step 4: Simplify right side
    7,881.84x = 47,263,391.90
  5. Step 5: Solve for x
    x = 47,263,391.90/7,881.84
  6. Step 6: Final answer
    x = 5,996.49

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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.