Home / 7,319.60-10,100.40-4,175.04

Finding the Fourth Proportional to 7,319.60, 10,100.40 and 4,175.04

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Solution

The fourth proportional to 7,319.60, 10,100.40 and 4,175.04 is: 5,761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.60 : 10,100.40 = 4,175.04 : x
  2. Step 2: Convert to fraction form
    7,319.60/10,100.40 = 4,175.04/x
  3. Step 3: Cross multiply
    7,319.60x = 10,100.40 × 4,175.04
  4. Step 4: Simplify right side
    7,319.60x = 42,169,574.02
  5. Step 5: Solve for x
    x = 42,169,574.02/7,319.60
  6. Step 6: Final answer
    x = 5,761.19

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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.