Home / 1,190.55-1,652.85-1,154.91

Finding the Fourth Proportional to 1,190.55, 1,652.85 and 1,154.91

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Solution

The fourth proportional to 1,190.55, 1,652.85 and 1,154.91 is: 1,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.55 : 1,652.85 = 1,154.91 : x
  2. Step 2: Convert to fraction form
    1,190.55/1,652.85 = 1,154.91/x
  3. Step 3: Cross multiply
    1,190.55x = 1,652.85 × 1,154.91
  4. Step 4: Simplify right side
    1,190.55x = 1,908,881.84
  5. Step 5: Solve for x
    x = 1,908,881.84/1,190.55
  6. Step 6: Final answer
    x = 1,603.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.