Home / 7,870.07-10,860.18-4,332.60

Finding the Fourth Proportional to 7,870.07, 10,860.18 and 4,332.60

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Solution

The fourth proportional to 7,870.07, 10,860.18 and 4,332.60 is: 5,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.07 : 10,860.18 = 4,332.60 : x
  2. Step 2: Convert to fraction form
    7,870.07/10,860.18 = 4,332.60/x
  3. Step 3: Cross multiply
    7,870.07x = 10,860.18 × 4,332.60
  4. Step 4: Simplify right side
    7,870.07x = 47,052,815.87
  5. Step 5: Solve for x
    x = 47,052,815.87/7,870.07
  6. Step 6: Final answer
    x = 5,978.71

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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.