Home / 1,259.66-1,738.30-700.10

Finding the Fourth Proportional to 1,259.66, 1,738.30 and 700.10

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Solution

The fourth proportional to 1,259.66, 1,738.30 and 700.10 is: 966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.66 : 1,738.30 = 700.10 : x
  2. Step 2: Convert to fraction form
    1,259.66/1,738.30 = 700.10/x
  3. Step 3: Cross multiply
    1,259.66x = 1,738.30 × 700.10
  4. Step 4: Simplify right side
    1,259.66x = 1,216,983.83
  5. Step 5: Solve for x
    x = 1,216,983.83/1,259.66
  6. Step 6: Final answer
    x = 966.12

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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.