Home / 1,430.24-2,143.90-968.06

Finding the Fourth Proportional to 1,430.24, 2,143.90 and 968.06

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Solution

The fourth proportional to 1,430.24, 2,143.90 and 968.06 is: 1,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.24 : 2,143.90 = 968.06 : x
  2. Step 2: Convert to fraction form
    1,430.24/2,143.90 = 968.06/x
  3. Step 3: Cross multiply
    1,430.24x = 2,143.90 × 968.06
  4. Step 4: Simplify right side
    1,430.24x = 2,075,423.83
  5. Step 5: Solve for x
    x = 2,075,423.83/1,430.24
  6. Step 6: Final answer
    x = 1,451.10

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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.