Home / 1,555.83-2,334.76-1,430.69

Finding the Fourth Proportional to 1,555.83, 2,334.76 and 1,430.69

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Solution

The fourth proportional to 1,555.83, 2,334.76 and 1,430.69 is: 2,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.83 : 2,334.76 = 1,430.69 : x
  2. Step 2: Convert to fraction form
    1,555.83/2,334.76 = 1,430.69/x
  3. Step 3: Cross multiply
    1,555.83x = 2,334.76 × 1,430.69
  4. Step 4: Simplify right side
    1,555.83x = 3,340,302.53
  5. Step 5: Solve for x
    x = 3,340,302.53/1,555.83
  6. Step 6: Final answer
    x = 2,146.96

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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.