Home / 1,267.08-1,748.40-707.46

Finding the Fourth Proportional to 1,267.08, 1,748.40 and 707.46

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Solution

The fourth proportional to 1,267.08, 1,748.40 and 707.46 is: 976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.08 : 1,748.40 = 707.46 : x
  2. Step 2: Convert to fraction form
    1,267.08/1,748.40 = 707.46/x
  3. Step 3: Cross multiply
    1,267.08x = 1,748.40 × 707.46
  4. Step 4: Simplify right side
    1,267.08x = 1,236,923.06
  5. Step 5: Solve for x
    x = 1,236,923.06/1,267.08
  6. Step 6: Final answer
    x = 976.20

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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.