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Finding the Fourth Proportional to 4,030.90, 5,630.30 and 4,030.90

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Solution

The fourth proportional to 4,030.90, 5,630.30 and 4,030.90 is: 5,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,030.90 : 5,630.30 = 4,030.90 : x
  2. Step 2: Convert to fraction form
    4,030.90/5,630.30 = 4,030.90/x
  3. Step 3: Cross multiply
    4,030.90x = 5,630.30 × 4,030.90
  4. Step 4: Simplify right side
    4,030.90x = 22,695,176.27
  5. Step 5: Solve for x
    x = 22,695,176.27/4,030.90
  6. Step 6: Final answer
    x = 5,630.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.