Home / 1,210.12-1,814.96-560.72

Finding the Fourth Proportional to 1,210.12, 1,814.96 and 560.72

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Solution

The fourth proportional to 1,210.12, 1,814.96 and 560.72 is: 840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.12 : 1,814.96 = 560.72 : x
  2. Step 2: Convert to fraction form
    1,210.12/1,814.96 = 560.72/x
  3. Step 3: Cross multiply
    1,210.12x = 1,814.96 × 560.72
  4. Step 4: Simplify right side
    1,210.12x = 1,017,684.37
  5. Step 5: Solve for x
    x = 1,017,684.37/1,210.12
  6. Step 6: Final answer
    x = 840.98

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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.