Home / 2,868.51-4,302.09-1,019.55

Finding the Fourth Proportional to 2,868.51, 4,302.09 and 1,019.55

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Solution

The fourth proportional to 2,868.51, 4,302.09 and 1,019.55 is: 1,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.51 : 4,302.09 = 1,019.55 : x
  2. Step 2: Convert to fraction form
    2,868.51/4,302.09 = 1,019.55/x
  3. Step 3: Cross multiply
    2,868.51x = 4,302.09 × 1,019.55
  4. Step 4: Simplify right side
    2,868.51x = 4,386,195.86
  5. Step 5: Solve for x
    x = 4,386,195.86/2,868.51
  6. Step 6: Final answer
    x = 1,529.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.