Home / 2,430.19-3,353.56-1,485.65

Finding the Fourth Proportional to 2,430.19, 3,353.56 and 1,485.65

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Solution

The fourth proportional to 2,430.19, 3,353.56 and 1,485.65 is: 2,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.19 : 3,353.56 = 1,485.65 : x
  2. Step 2: Convert to fraction form
    2,430.19/3,353.56 = 1,485.65/x
  3. Step 3: Cross multiply
    2,430.19x = 3,353.56 × 1,485.65
  4. Step 4: Simplify right side
    2,430.19x = 4,982,216.41
  5. Step 5: Solve for x
    x = 4,982,216.41/2,430.19
  6. Step 6: Final answer
    x = 2,050.13

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Half scale
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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.