Home / 7,445.21-10,274.45-4,087.94

Finding the Fourth Proportional to 7,445.21, 10,274.45 and 4,087.94

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Solution

The fourth proportional to 7,445.21, 10,274.45 and 4,087.94 is: 5,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.21 : 10,274.45 = 4,087.94 : x
  2. Step 2: Convert to fraction form
    7,445.21/10,274.45 = 4,087.94/x
  3. Step 3: Cross multiply
    7,445.21x = 10,274.45 × 4,087.94
  4. Step 4: Simplify right side
    7,445.21x = 42,001,263.32
  5. Step 5: Solve for x
    x = 42,001,263.32/7,445.21
  6. Step 6: Final answer
    x = 5,641.38

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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.