Home / 7,408.40-10,223.75-4,051.16

Finding the Fourth Proportional to 7,408.40, 10,223.75 and 4,051.16

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Solution

The fourth proportional to 7,408.40, 10,223.75 and 4,051.16 is: 5,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.40 : 10,223.75 = 4,051.16 : x
  2. Step 2: Convert to fraction form
    7,408.40/10,223.75 = 4,051.16/x
  3. Step 3: Cross multiply
    7,408.40x = 10,223.75 × 4,051.16
  4. Step 4: Simplify right side
    7,408.40x = 41,417,975.68
  5. Step 5: Solve for x
    x = 41,417,975.68/7,408.40
  6. Step 6: Final answer
    x = 5,590.68

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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.