Home / 6,445-8,894.10-3,927.52

Finding the Fourth Proportional to 6,445, 8,894.10 and 3,927.52

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Solution

The fourth proportional to 6,445, 8,894.10 and 3,927.52 is: 5,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445 : 8,894.10 = 3,927.52 : x
  2. Step 2: Convert to fraction form
    6,445/8,894.10 = 3,927.52/x
  3. Step 3: Cross multiply
    6,445x = 8,894.10 × 3,927.52
  4. Step 4: Simplify right side
    6,445x = 34,931,755.63
  5. Step 5: Solve for x
    x = 34,931,755.63/6,445
  6. Step 6: Final answer
    x = 5,419.98

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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.