Home / 7,916.40-10,922.82-4,729.19

Finding the Fourth Proportional to 7,916.40, 10,922.82 and 4,729.19

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Solution

The fourth proportional to 7,916.40, 10,922.82 and 4,729.19 is: 6,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.40 : 10,922.82 = 4,729.19 : x
  2. Step 2: Convert to fraction form
    7,916.40/10,922.82 = 4,729.19/x
  3. Step 3: Cross multiply
    7,916.40x = 10,922.82 × 4,729.19
  4. Step 4: Simplify right side
    7,916.40x = 51,656,058.67
  5. Step 5: Solve for x
    x = 51,656,058.67/7,916.40
  6. Step 6: Final answer
    x = 6,525.20

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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.