Home / 2,430.10-3,642.45-1,259.65

Finding the Fourth Proportional to 2,430.10, 3,642.45 and 1,259.65

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Solution

The fourth proportional to 2,430.10, 3,642.45 and 1,259.65 is: 1,888.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.10 : 3,642.45 = 1,259.65 : x
  2. Step 2: Convert to fraction form
    2,430.10/3,642.45 = 1,259.65/x
  3. Step 3: Cross multiply
    2,430.10x = 3,642.45 × 1,259.65
  4. Step 4: Simplify right side
    2,430.10x = 4,588,212.14
  5. Step 5: Solve for x
    x = 4,588,212.14/2,430.10
  6. Step 6: Final answer
    x = 1,888.08

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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.