Home / 1,458.27-2,011.28-934.35

Finding the Fourth Proportional to 1,458.27, 2,011.28 and 934.35

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Solution

The fourth proportional to 1,458.27, 2,011.28 and 934.35 is: 1,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.27 : 2,011.28 = 934.35 : x
  2. Step 2: Convert to fraction form
    1,458.27/2,011.28 = 934.35/x
  3. Step 3: Cross multiply
    1,458.27x = 2,011.28 × 934.35
  4. Step 4: Simplify right side
    1,458.27x = 1,879,234.80
  5. Step 5: Solve for x
    x = 1,879,234.80/1,458.27
  6. Step 6: Final answer
    x = 1,288.67

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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.