Home / 2,860.07-4,290.53-1,011.20

Finding the Fourth Proportional to 2,860.07, 4,290.53 and 1,011.20

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Solution

The fourth proportional to 2,860.07, 4,290.53 and 1,011.20 is: 1,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.07 : 4,290.53 = 1,011.20 : x
  2. Step 2: Convert to fraction form
    2,860.07/4,290.53 = 1,011.20/x
  3. Step 3: Cross multiply
    2,860.07x = 4,290.53 × 1,011.20
  4. Step 4: Simplify right side
    2,860.07x = 4,338,557.43
  5. Step 5: Solve for x
    x = 4,338,557.43/2,860.07
  6. Step 6: Final answer
    x = 1,516.94

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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.