Home / 2,017.80-2,784.36-1,178.52

Finding the Fourth Proportional to 2,017.80, 2,784.36 and 1,178.52

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Solution

The fourth proportional to 2,017.80, 2,784.36 and 1,178.52 is: 1,626.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.80 : 2,784.36 = 1,178.52 : x
  2. Step 2: Convert to fraction form
    2,017.80/2,784.36 = 1,178.52/x
  3. Step 3: Cross multiply
    2,017.80x = 2,784.36 × 1,178.52
  4. Step 4: Simplify right side
    2,017.80x = 3,281,423.95
  5. Step 5: Solve for x
    x = 3,281,423.95/2,017.80
  6. Step 6: Final answer
    x = 1,626.24

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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.