Home / 3,260.19-4,890.24-1,312.35

Finding the Fourth Proportional to 3,260.19, 4,890.24 and 1,312.35

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Solution

The fourth proportional to 3,260.19, 4,890.24 and 1,312.35 is: 1,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.19 : 4,890.24 = 1,312.35 : x
  2. Step 2: Convert to fraction form
    3,260.19/4,890.24 = 1,312.35/x
  3. Step 3: Cross multiply
    3,260.19x = 4,890.24 × 1,312.35
  4. Step 4: Simplify right side
    3,260.19x = 6,417,675.45
  5. Step 5: Solve for x
    x = 6,417,675.45/3,260.19
  6. Step 6: Final answer
    x = 1,968.50

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Double scale
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Similar ratio
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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.