Home / 2,017.64-2,782.50-1,387.16

Finding the Fourth Proportional to 2,017.64, 2,782.50 and 1,387.16

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Solution

The fourth proportional to 2,017.64, 2,782.50 and 1,387.16 is: 1,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.64 : 2,782.50 = 1,387.16 : x
  2. Step 2: Convert to fraction form
    2,017.64/2,782.50 = 1,387.16/x
  3. Step 3: Cross multiply
    2,017.64x = 2,782.50 × 1,387.16
  4. Step 4: Simplify right side
    2,017.64x = 3,859,758.79
  5. Step 5: Solve for x
    x = 3,859,758.79/2,017.64
  6. Step 6: Final answer
    x = 1,913.01

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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.