Home / 7,140.34-9,854.88-4,157.93

Finding the Fourth Proportional to 7,140.34, 9,854.88 and 4,157.93

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Solution

The fourth proportional to 7,140.34, 9,854.88 and 4,157.93 is: 5,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.34 : 9,854.88 = 4,157.93 : x
  2. Step 2: Convert to fraction form
    7,140.34/9,854.88 = 4,157.93/x
  3. Step 3: Cross multiply
    7,140.34x = 9,854.88 × 4,157.93
  4. Step 4: Simplify right side
    7,140.34x = 40,975,910.24
  5. Step 5: Solve for x
    x = 40,975,910.24/7,140.34
  6. Step 6: Final answer
    x = 5,738.65

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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.