Home / 2,319.51-3,478.14-1,148.16

Finding the Fourth Proportional to 2,319.51, 3,478.14 and 1,148.16

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Solution

The fourth proportional to 2,319.51, 3,478.14 and 1,148.16 is: 1,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.51 : 3,478.14 = 1,148.16 : x
  2. Step 2: Convert to fraction form
    2,319.51/3,478.14 = 1,148.16/x
  3. Step 3: Cross multiply
    2,319.51x = 3,478.14 × 1,148.16
  4. Step 4: Simplify right side
    2,319.51x = 3,993,461.22
  5. Step 5: Solve for x
    x = 3,993,461.22/2,319.51
  6. Step 6: Final answer
    x = 1,721.68

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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.