Home / 4,931.80-7,345.37-4,907.95

Finding the Fourth Proportional to 4,931.80, 7,345.37 and 4,907.95

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Solution

The fourth proportional to 4,931.80, 7,345.37 and 4,907.95 is: 7,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.80 : 7,345.37 = 4,907.95 : x
  2. Step 2: Convert to fraction form
    4,931.80/7,345.37 = 4,907.95/x
  3. Step 3: Cross multiply
    4,931.80x = 7,345.37 × 4,907.95
  4. Step 4: Simplify right side
    4,931.80x = 36,050,708.69
  5. Step 5: Solve for x
    x = 36,050,708.69/4,931.80
  6. Step 6: Final answer
    x = 7,309.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.