Home / 2,017.52-2,784.16-1,121.25

Finding the Fourth Proportional to 2,017.52, 2,784.16 and 1,121.25

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Solution

The fourth proportional to 2,017.52, 2,784.16 and 1,121.25 is: 1,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.52 : 2,784.16 = 1,121.25 : x
  2. Step 2: Convert to fraction form
    2,017.52/2,784.16 = 1,121.25/x
  3. Step 3: Cross multiply
    2,017.52x = 2,784.16 × 1,121.25
  4. Step 4: Simplify right side
    2,017.52x = 3,121,739.40
  5. Step 5: Solve for x
    x = 3,121,739.40/2,017.52
  6. Step 6: Final answer
    x = 1,547.32

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1.5x scale

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.