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Finding the Fourth Proportional to 2,955.48, 4,430.48 and 1,105.18

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Solution

The fourth proportional to 2,955.48, 4,430.48 and 1,105.18 is: 1,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.48 : 4,430.48 = 1,105.18 : x
  2. Step 2: Convert to fraction form
    2,955.48/4,430.48 = 1,105.18/x
  3. Step 3: Cross multiply
    2,955.48x = 4,430.48 × 1,105.18
  4. Step 4: Simplify right side
    2,955.48x = 4,896,477.89
  5. Step 5: Solve for x
    x = 4,896,477.89/2,955.48
  6. Step 6: Final answer
    x = 1,656.75

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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.