Home / 1,266.24-1,746.72-1,181.70

Finding the Fourth Proportional to 1,266.24, 1,746.72 and 1,181.70

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Solution

The fourth proportional to 1,266.24, 1,746.72 and 1,181.70 is: 1,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.24 : 1,746.72 = 1,181.70 : x
  2. Step 2: Convert to fraction form
    1,266.24/1,746.72 = 1,181.70/x
  3. Step 3: Cross multiply
    1,266.24x = 1,746.72 × 1,181.70
  4. Step 4: Simplify right side
    1,266.24x = 2,064,099.02
  5. Step 5: Solve for x
    x = 2,064,099.02/1,266.24
  6. Step 6: Final answer
    x = 1,630.10

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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.