Home / 1,505.42-2,077.73-1,113.57

Finding the Fourth Proportional to 1,505.42, 2,077.73 and 1,113.57

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Solution

The fourth proportional to 1,505.42, 2,077.73 and 1,113.57 is: 1,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.42 : 2,077.73 = 1,113.57 : x
  2. Step 2: Convert to fraction form
    1,505.42/2,077.73 = 1,113.57/x
  3. Step 3: Cross multiply
    1,505.42x = 2,077.73 × 1,113.57
  4. Step 4: Simplify right side
    1,505.42x = 2,313,692.23
  5. Step 5: Solve for x
    x = 2,313,692.23/1,505.42
  6. Step 6: Final answer
    x = 1,536.91

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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.