Home / 3,315.65-4,574.06-1,987.04

Finding the Fourth Proportional to 3,315.65, 4,574.06 and 1,987.04

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Solution

The fourth proportional to 3,315.65, 4,574.06 and 1,987.04 is: 2,741.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.65 : 4,574.06 = 1,987.04 : x
  2. Step 2: Convert to fraction form
    3,315.65/4,574.06 = 1,987.04/x
  3. Step 3: Cross multiply
    3,315.65x = 4,574.06 × 1,987.04
  4. Step 4: Simplify right side
    3,315.65x = 9,088,857.71
  5. Step 5: Solve for x
    x = 9,088,857.71/3,315.65
  6. Step 6: Final answer
    x = 2,741.20

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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.