Home / 5,358.21-7,395.50-3,120.53

Finding the Fourth Proportional to 5,358.21, 7,395.50 and 3,120.53

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Solution

The fourth proportional to 5,358.21, 7,395.50 and 3,120.53 is: 4,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.21 : 7,395.50 = 3,120.53 : x
  2. Step 2: Convert to fraction form
    5,358.21/7,395.50 = 3,120.53/x
  3. Step 3: Cross multiply
    5,358.21x = 7,395.50 × 3,120.53
  4. Step 4: Simplify right side
    5,358.21x = 23,077,842.64
  5. Step 5: Solve for x
    x = 23,077,842.64/5,358.21
  6. Step 6: Final answer
    x = 4,307.01

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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.