Home / 1,211.10-1,670.73-1,045.26

Finding the Fourth Proportional to 1,211.10, 1,670.73 and 1,045.26

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Solution

The fourth proportional to 1,211.10, 1,670.73 and 1,045.26 is: 1,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211.10 : 1,670.73 = 1,045.26 : x
  2. Step 2: Convert to fraction form
    1,211.10/1,670.73 = 1,045.26/x
  3. Step 3: Cross multiply
    1,211.10x = 1,670.73 × 1,045.26
  4. Step 4: Simplify right side
    1,211.10x = 1,746,347.24
  5. Step 5: Solve for x
    x = 1,746,347.24/1,211.10
  6. Step 6: Final answer
    x = 1,441.95

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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.