Home / 7,140.77-9,859.08-4,453.04

Finding the Fourth Proportional to 7,140.77, 9,859.08 and 4,453.04

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Solution

The fourth proportional to 7,140.77, 9,859.08 and 4,453.04 is: 6,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.77 : 9,859.08 = 4,453.04 : x
  2. Step 2: Convert to fraction form
    7,140.77/9,859.08 = 4,453.04/x
  3. Step 3: Cross multiply
    7,140.77x = 9,859.08 × 4,453.04
  4. Step 4: Simplify right side
    7,140.77x = 43,902,877.60
  5. Step 5: Solve for x
    x = 43,902,877.60/7,140.77
  6. Step 6: Final answer
    x = 6,148.20

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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.