Home / 2,277.08-3,140.80-1,393.32

Finding the Fourth Proportional to 2,277.08, 3,140.80 and 1,393.32

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Solution

The fourth proportional to 2,277.08, 3,140.80 and 1,393.32 is: 1,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.08 : 3,140.80 = 1,393.32 : x
  2. Step 2: Convert to fraction form
    2,277.08/3,140.80 = 1,393.32/x
  3. Step 3: Cross multiply
    2,277.08x = 3,140.80 × 1,393.32
  4. Step 4: Simplify right side
    2,277.08x = 4,376,139.46
  5. Step 5: Solve for x
    x = 4,376,139.46/2,277.08
  6. Step 6: Final answer
    x = 1,921.82

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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.