Home / 1,565.35-2,355.86-1,177.36

Finding the Fourth Proportional to 1,565.35, 2,355.86 and 1,177.36

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Solution

The fourth proportional to 1,565.35, 2,355.86 and 1,177.36 is: 1,771.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.35 : 2,355.86 = 1,177.36 : x
  2. Step 2: Convert to fraction form
    1,565.35/2,355.86 = 1,177.36/x
  3. Step 3: Cross multiply
    1,565.35x = 2,355.86 × 1,177.36
  4. Step 4: Simplify right side
    1,565.35x = 2,773,685.76
  5. Step 5: Solve for x
    x = 2,773,685.76/1,565.35
  6. Step 6: Final answer
    x = 1,771.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.