Home / 2,557.40-3,533.60-1,972.96

Finding the Fourth Proportional to 2,557.40, 3,533.60 and 1,972.96

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Solution

The fourth proportional to 2,557.40, 3,533.60 and 1,972.96 is: 2,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,557.40 : 3,533.60 = 1,972.96 : x
  2. Step 2: Convert to fraction form
    2,557.40/3,533.60 = 1,972.96/x
  3. Step 3: Cross multiply
    2,557.40x = 3,533.60 × 1,972.96
  4. Step 4: Simplify right side
    2,557.40x = 6,971,651.46
  5. Step 5: Solve for x
    x = 6,971,651.46/2,557.40
  6. Step 6: Final answer
    x = 2,726.07

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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.