Home / 1,043.40-1,556.98-1,036.20

Finding the Fourth Proportional to 1,043.40, 1,556.98 and 1,036.20

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Solution

The fourth proportional to 1,043.40, 1,556.98 and 1,036.20 is: 1,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.40 : 1,556.98 = 1,036.20 : x
  2. Step 2: Convert to fraction form
    1,043.40/1,556.98 = 1,036.20/x
  3. Step 3: Cross multiply
    1,043.40x = 1,556.98 × 1,036.20
  4. Step 4: Simplify right side
    1,043.40x = 1,613,342.68
  5. Step 5: Solve for x
    x = 1,613,342.68/1,043.40
  6. Step 6: Final answer
    x = 1,546.24

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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.