Home / 4,430.81-6,647.70-1,657.78

Finding the Fourth Proportional to 4,430.81, 6,647.70 and 1,657.78

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Solution

The fourth proportional to 4,430.81, 6,647.70 and 1,657.78 is: 2,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.81 : 6,647.70 = 1,657.78 : x
  2. Step 2: Convert to fraction form
    4,430.81/6,647.70 = 1,657.78/x
  3. Step 3: Cross multiply
    4,430.81x = 6,647.70 × 1,657.78
  4. Step 4: Simplify right side
    4,430.81x = 11,020,424.11
  5. Step 5: Solve for x
    x = 11,020,424.11/4,430.81
  6. Step 6: Final answer
    x = 2,487.23

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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.