Home / 7,238.06-9,988.35-4,051.40

Finding the Fourth Proportional to 7,238.06, 9,988.35 and 4,051.40

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Solution

The fourth proportional to 7,238.06, 9,988.35 and 4,051.40 is: 5,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.06 : 9,988.35 = 4,051.40 : x
  2. Step 2: Convert to fraction form
    7,238.06/9,988.35 = 4,051.40/x
  3. Step 3: Cross multiply
    7,238.06x = 9,988.35 × 4,051.40
  4. Step 4: Simplify right side
    7,238.06x = 40,466,801.19
  5. Step 5: Solve for x
    x = 40,466,801.19/7,238.06
  6. Step 6: Final answer
    x = 5,590.84

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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.