Home / 1,816.78-2,506.95-1,020.16

Finding the Fourth Proportional to 1,816.78, 2,506.95 and 1,020.16

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Solution

The fourth proportional to 1,816.78, 2,506.95 and 1,020.16 is: 1,407.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.78 : 2,506.95 = 1,020.16 : x
  2. Step 2: Convert to fraction form
    1,816.78/2,506.95 = 1,020.16/x
  3. Step 3: Cross multiply
    1,816.78x = 2,506.95 × 1,020.16
  4. Step 4: Simplify right side
    1,816.78x = 2,557,490.11
  5. Step 5: Solve for x
    x = 2,557,490.11/1,816.78
  6. Step 6: Final answer
    x = 1,407.70

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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.