Home / 4,890.39-7,335.55-1,603.45

Finding the Fourth Proportional to 4,890.39, 7,335.55 and 1,603.45

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Solution

The fourth proportional to 4,890.39, 7,335.55 and 1,603.45 is: 2,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.39 : 7,335.55 = 1,603.45 : x
  2. Step 2: Convert to fraction form
    4,890.39/7,335.55 = 1,603.45/x
  3. Step 3: Cross multiply
    4,890.39x = 7,335.55 × 1,603.45
  4. Step 4: Simplify right side
    4,890.39x = 11,762,187.65
  5. Step 5: Solve for x
    x = 11,762,187.65/4,890.39
  6. Step 6: Final answer
    x = 2,405.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.