Home / 1,478.24-2,039.48-1,106.56

Finding the Fourth Proportional to 1,478.24, 2,039.48 and 1,106.56

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Solution

The fourth proportional to 1,478.24, 2,039.48 and 1,106.56 is: 1,526.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.24 : 2,039.48 = 1,106.56 : x
  2. Step 2: Convert to fraction form
    1,478.24/2,039.48 = 1,106.56/x
  3. Step 3: Cross multiply
    1,478.24x = 2,039.48 × 1,106.56
  4. Step 4: Simplify right side
    1,478.24x = 2,256,806.99
  5. Step 5: Solve for x
    x = 2,256,806.99/1,478.24
  6. Step 6: Final answer
    x = 1,526.69

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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.