Home / 5,648.40-8,480.70-4,417.20

Finding the Fourth Proportional to 5,648.40, 8,480.70 and 4,417.20

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Solution

The fourth proportional to 5,648.40, 8,480.70 and 4,417.20 is: 6,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.40 : 8,480.70 = 4,417.20 : x
  2. Step 2: Convert to fraction form
    5,648.40/8,480.70 = 4,417.20/x
  3. Step 3: Cross multiply
    5,648.40x = 8,480.70 × 4,417.20
  4. Step 4: Simplify right side
    5,648.40x = 37,460,948.04
  5. Step 5: Solve for x
    x = 37,460,948.04/5,648.40
  6. Step 6: Final answer
    x = 6,632.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.