Home / 7,880.81-10,877.12-4,525.89

Finding the Fourth Proportional to 7,880.81, 10,877.12 and 4,525.89

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Solution

The fourth proportional to 7,880.81, 10,877.12 and 4,525.89 is: 6,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.81 : 10,877.12 = 4,525.89 : x
  2. Step 2: Convert to fraction form
    7,880.81/10,877.12 = 4,525.89/x
  3. Step 3: Cross multiply
    7,880.81x = 10,877.12 × 4,525.89
  4. Step 4: Simplify right side
    7,880.81x = 49,228,602.19
  5. Step 5: Solve for x
    x = 49,228,602.19/7,880.81
  6. Step 6: Final answer
    x = 6,246.65

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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.