Home / 7,640.90-10,549.60-4,774.01

Finding the Fourth Proportional to 7,640.90, 10,549.60 and 4,774.01

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Solution

The fourth proportional to 7,640.90, 10,549.60 and 4,774.01 is: 6,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.90 : 10,549.60 = 4,774.01 : x
  2. Step 2: Convert to fraction form
    7,640.90/10,549.60 = 4,774.01/x
  3. Step 3: Cross multiply
    7,640.90x = 10,549.60 × 4,774.01
  4. Step 4: Simplify right side
    7,640.90x = 50,363,895.90
  5. Step 5: Solve for x
    x = 50,363,895.90/7,640.90
  6. Step 6: Final answer
    x = 6,591.36

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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.