Home / 2,479.13-3,421.07-1,888.64

Finding the Fourth Proportional to 2,479.13, 3,421.07 and 1,888.64

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Solution

The fourth proportional to 2,479.13, 3,421.07 and 1,888.64 is: 2,606.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.13 : 3,421.07 = 1,888.64 : x
  2. Step 2: Convert to fraction form
    2,479.13/3,421.07 = 1,888.64/x
  3. Step 3: Cross multiply
    2,479.13x = 3,421.07 × 1,888.64
  4. Step 4: Simplify right side
    2,479.13x = 6,461,182.25
  5. Step 5: Solve for x
    x = 6,461,182.25/2,479.13
  6. Step 6: Final answer
    x = 2,606.23

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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.