Home / 1,208.16-1,810.98-558.36

Finding the Fourth Proportional to 1,208.16, 1,810.98 and 558.36

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Solution

The fourth proportional to 1,208.16, 1,810.98 and 558.36 is: 836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.16 : 1,810.98 = 558.36 : x
  2. Step 2: Convert to fraction form
    1,208.16/1,810.98 = 558.36/x
  3. Step 3: Cross multiply
    1,208.16x = 1,810.98 × 558.36
  4. Step 4: Simplify right side
    1,208.16x = 1,011,178.79
  5. Step 5: Solve for x
    x = 1,011,178.79/1,208.16
  6. Step 6: Final answer
    x = 836.96

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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.