Home / 5,430.63-7,494.08-3,072.72

Finding the Fourth Proportional to 5,430.63, 7,494.08 and 3,072.72

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Solution

The fourth proportional to 5,430.63, 7,494.08 and 3,072.72 is: 4,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.63 : 7,494.08 = 3,072.72 : x
  2. Step 2: Convert to fraction form
    5,430.63/7,494.08 = 3,072.72/x
  3. Step 3: Cross multiply
    5,430.63x = 7,494.08 × 3,072.72
  4. Step 4: Simplify right side
    5,430.63x = 23,027,209.50
  5. Step 5: Solve for x
    x = 23,027,209.50/5,430.63
  6. Step 6: Final answer
    x = 4,240.25

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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.