Home / 3,353.63-5,030.48-1,378.76

Finding the Fourth Proportional to 3,353.63, 5,030.48 and 1,378.76

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Solution

The fourth proportional to 3,353.63, 5,030.48 and 1,378.76 is: 2,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.63 : 5,030.48 = 1,378.76 : x
  2. Step 2: Convert to fraction form
    3,353.63/5,030.48 = 1,378.76/x
  3. Step 3: Cross multiply
    3,353.63x = 5,030.48 × 1,378.76
  4. Step 4: Simplify right side
    3,353.63x = 6,935,824.60
  5. Step 5: Solve for x
    x = 6,935,824.60/3,353.63
  6. Step 6: Final answer
    x = 2,068.15

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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.