Home / 1,603.23-2,212.37-904.56

Finding the Fourth Proportional to 1,603.23, 2,212.37 and 904.56

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Solution

The fourth proportional to 1,603.23, 2,212.37 and 904.56 is: 1,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.23 : 2,212.37 = 904.56 : x
  2. Step 2: Convert to fraction form
    1,603.23/2,212.37 = 904.56/x
  3. Step 3: Cross multiply
    1,603.23x = 2,212.37 × 904.56
  4. Step 4: Simplify right side
    1,603.23x = 2,001,221.41
  5. Step 5: Solve for x
    x = 2,001,221.41/1,603.23
  6. Step 6: Final answer
    x = 1,248.24

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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.