Home / 1,417.19-2,111.40-1,347.48

Finding the Fourth Proportional to 1,417.19, 2,111.40 and 1,347.48

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Solution

The fourth proportional to 1,417.19, 2,111.40 and 1,347.48 is: 2,007.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.19 : 2,111.40 = 1,347.48 : x
  2. Step 2: Convert to fraction form
    1,417.19/2,111.40 = 1,347.48/x
  3. Step 3: Cross multiply
    1,417.19x = 2,111.40 × 1,347.48
  4. Step 4: Simplify right side
    1,417.19x = 2,845,069.27
  5. Step 5: Solve for x
    x = 2,845,069.27/1,417.19
  6. Step 6: Final answer
    x = 2,007.55

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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.