Home / 1,303.11-1,946.95-1,242.63

Finding the Fourth Proportional to 1,303.11, 1,946.95 and 1,242.63

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Solution

The fourth proportional to 1,303.11, 1,946.95 and 1,242.63 is: 1,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.11 : 1,946.95 = 1,242.63 : x
  2. Step 2: Convert to fraction form
    1,303.11/1,946.95 = 1,242.63/x
  3. Step 3: Cross multiply
    1,303.11x = 1,946.95 × 1,242.63
  4. Step 4: Simplify right side
    1,303.11x = 2,419,335.37
  5. Step 5: Solve for x
    x = 2,419,335.37/1,303.11
  6. Step 6: Final answer
    x = 1,856.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.