Home / 1,430.04-2,147.48-1,249.01

Finding the Fourth Proportional to 1,430.04, 2,147.48 and 1,249.01

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Solution

The fourth proportional to 1,430.04, 2,147.48 and 1,249.01 is: 1,875.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.04 : 2,147.48 = 1,249.01 : x
  2. Step 2: Convert to fraction form
    1,430.04/2,147.48 = 1,249.01/x
  3. Step 3: Cross multiply
    1,430.04x = 2,147.48 × 1,249.01
  4. Step 4: Simplify right side
    1,430.04x = 2,682,207.01
  5. Step 5: Solve for x
    x = 2,682,207.01/1,430.04
  6. Step 6: Final answer
    x = 1,875.62

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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.