Home / 1,577.87-2,174.71-1,157.34

Finding the Fourth Proportional to 1,577.87, 2,174.71 and 1,157.34

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Solution

The fourth proportional to 1,577.87, 2,174.71 and 1,157.34 is: 1,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.87 : 2,174.71 = 1,157.34 : x
  2. Step 2: Convert to fraction form
    1,577.87/2,174.71 = 1,157.34/x
  3. Step 3: Cross multiply
    1,577.87x = 2,174.71 × 1,157.34
  4. Step 4: Simplify right side
    1,577.87x = 2,516,878.87
  5. Step 5: Solve for x
    x = 2,516,878.87/1,577.87
  6. Step 6: Final answer
    x = 1,595.11

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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.