Home / 2,784.39-4,176.12-1,030.21

Finding the Fourth Proportional to 2,784.39, 4,176.12 and 1,030.21

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Solution

The fourth proportional to 2,784.39, 4,176.12 and 1,030.21 is: 1,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.39 : 4,176.12 = 1,030.21 : x
  2. Step 2: Convert to fraction form
    2,784.39/4,176.12 = 1,030.21/x
  3. Step 3: Cross multiply
    2,784.39x = 4,176.12 × 1,030.21
  4. Step 4: Simplify right side
    2,784.39x = 4,302,280.59
  5. Step 5: Solve for x
    x = 4,302,280.59/2,784.39
  6. Step 6: Final answer
    x = 1,545.14

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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.