Home / 1,207.24-1,811.40-558.16

Finding the Fourth Proportional to 1,207.24, 1,811.40 and 558.16

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Solution

The fourth proportional to 1,207.24, 1,811.40 and 558.16 is: 837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.24 : 1,811.40 = 558.16 : x
  2. Step 2: Convert to fraction form
    1,207.24/1,811.40 = 558.16/x
  3. Step 3: Cross multiply
    1,207.24x = 1,811.40 × 558.16
  4. Step 4: Simplify right side
    1,207.24x = 1,011,051.02
  5. Step 5: Solve for x
    x = 1,011,051.02/1,207.24
  6. Step 6: Final answer
    x = 837.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.