Home / 2,657.95-3,667.55-1,538.66

Finding the Fourth Proportional to 2,657.95, 3,667.55 and 1,538.66

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Solution

The fourth proportional to 2,657.95, 3,667.55 and 1,538.66 is: 2,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.95 : 3,667.55 = 1,538.66 : x
  2. Step 2: Convert to fraction form
    2,657.95/3,667.55 = 1,538.66/x
  3. Step 3: Cross multiply
    2,657.95x = 3,667.55 × 1,538.66
  4. Step 4: Simplify right side
    2,657.95x = 5,643,113.96
  5. Step 5: Solve for x
    x = 5,643,113.96/2,657.95
  6. Step 6: Final answer
    x = 2,123.11

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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.