Home / 4,890.49-7,335.73-4,230.40

Finding the Fourth Proportional to 4,890.49, 7,335.73 and 4,230.40

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Solution

The fourth proportional to 4,890.49, 7,335.73 and 4,230.40 is: 6,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.49 : 7,335.73 = 4,230.40 : x
  2. Step 2: Convert to fraction form
    4,890.49/7,335.73 = 4,230.40/x
  3. Step 3: Cross multiply
    4,890.49x = 7,335.73 × 4,230.40
  4. Step 4: Simplify right side
    4,890.49x = 31,033,072.19
  5. Step 5: Solve for x
    x = 31,033,072.19/4,890.49
  6. Step 6: Final answer
    x = 6,345.60

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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.