Home / 2,812.07-4,215.26-2,319.99

Finding the Fourth Proportional to 2,812.07, 4,215.26 and 2,319.99

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Solution

The fourth proportional to 2,812.07, 4,215.26 and 2,319.99 is: 3,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.07 : 4,215.26 = 2,319.99 : x
  2. Step 2: Convert to fraction form
    2,812.07/4,215.26 = 2,319.99/x
  3. Step 3: Cross multiply
    2,812.07x = 4,215.26 × 2,319.99
  4. Step 4: Simplify right side
    2,812.07x = 9,779,349.45
  5. Step 5: Solve for x
    x = 9,779,349.45/2,812.07
  6. Step 6: Final answer
    x = 3,477.64

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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.