Home / 1,481.63-2,038.55-1,445.18

Finding the Fourth Proportional to 1,481.63, 2,038.55 and 1,445.18

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Solution

The fourth proportional to 1,481.63, 2,038.55 and 1,445.18 is: 1,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.63 : 2,038.55 = 1,445.18 : x
  2. Step 2: Convert to fraction form
    1,481.63/2,038.55 = 1,445.18/x
  3. Step 3: Cross multiply
    1,481.63x = 2,038.55 × 1,445.18
  4. Step 4: Simplify right side
    1,481.63x = 2,946,054.27
  5. Step 5: Solve for x
    x = 2,946,054.27/1,481.63
  6. Step 6: Final answer
    x = 1,988.39

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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.