Home / 1,261.24-1,740.36-701.57

Finding the Fourth Proportional to 1,261.24, 1,740.36 and 701.57

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Solution

The fourth proportional to 1,261.24, 1,740.36 and 701.57 is: 968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.24 : 1,740.36 = 701.57 : x
  2. Step 2: Convert to fraction form
    1,261.24/1,740.36 = 701.57/x
  3. Step 3: Cross multiply
    1,261.24x = 1,740.36 × 701.57
  4. Step 4: Simplify right side
    1,261.24x = 1,220,984.37
  5. Step 5: Solve for x
    x = 1,220,984.37/1,261.24
  6. Step 6: Final answer
    x = 968.08

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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.