Home / 7,040.12-9,715.60-4,055.72

Finding the Fourth Proportional to 7,040.12, 9,715.60 and 4,055.72

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Solution

The fourth proportional to 7,040.12, 9,715.60 and 4,055.72 is: 5,597.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.12 : 9,715.60 = 4,055.72 : x
  2. Step 2: Convert to fraction form
    7,040.12/9,715.60 = 4,055.72/x
  3. Step 3: Cross multiply
    7,040.12x = 9,715.60 × 4,055.72
  4. Step 4: Simplify right side
    7,040.12x = 39,403,753.23
  5. Step 5: Solve for x
    x = 39,403,753.23/7,040.12
  6. Step 6: Final answer
    x = 5,597.03

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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.