Home / 1,347.20-1,858.56-1,032.32

Finding the Fourth Proportional to 1,347.20, 1,858.56 and 1,032.32

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Solution

The fourth proportional to 1,347.20, 1,858.56 and 1,032.32 is: 1,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.20 : 1,858.56 = 1,032.32 : x
  2. Step 2: Convert to fraction form
    1,347.20/1,858.56 = 1,032.32/x
  3. Step 3: Cross multiply
    1,347.20x = 1,858.56 × 1,032.32
  4. Step 4: Simplify right side
    1,347.20x = 1,918,628.66
  5. Step 5: Solve for x
    x = 1,918,628.66/1,347.20
  6. Step 6: Final answer
    x = 1,424.16

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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.