Home / 5,351.40-8,030.70-2,428.20

Finding the Fourth Proportional to 5,351.40, 8,030.70 and 2,428.20

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Solution

The fourth proportional to 5,351.40, 8,030.70 and 2,428.20 is: 3,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.40 : 8,030.70 = 2,428.20 : x
  2. Step 2: Convert to fraction form
    5,351.40/8,030.70 = 2,428.20/x
  3. Step 3: Cross multiply
    5,351.40x = 8,030.70 × 2,428.20
  4. Step 4: Simplify right side
    5,351.40x = 19,500,145.74
  5. Step 5: Solve for x
    x = 19,500,145.74/5,351.40
  6. Step 6: Final answer
    x = 3,643.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.