Home / 1,794.30-2,475.52-1,121.65

Finding the Fourth Proportional to 1,794.30, 2,475.52 and 1,121.65

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Solution

The fourth proportional to 1,794.30, 2,475.52 and 1,121.65 is: 1,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794.30 : 2,475.52 = 1,121.65 : x
  2. Step 2: Convert to fraction form
    1,794.30/2,475.52 = 1,121.65/x
  3. Step 3: Cross multiply
    1,794.30x = 2,475.52 × 1,121.65
  4. Step 4: Simplify right side
    1,794.30x = 2,776,667.01
  5. Step 5: Solve for x
    x = 2,776,667.01/1,794.30
  6. Step 6: Final answer
    x = 1,547.49

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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.