Home / 2,424.48-3,345.21-1,678.20

Finding the Fourth Proportional to 2,424.48, 3,345.21 and 1,678.20

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Solution

The fourth proportional to 2,424.48, 3,345.21 and 1,678.20 is: 2,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.48 : 3,345.21 = 1,678.20 : x
  2. Step 2: Convert to fraction form
    2,424.48/3,345.21 = 1,678.20/x
  3. Step 3: Cross multiply
    2,424.48x = 3,345.21 × 1,678.20
  4. Step 4: Simplify right side
    2,424.48x = 5,613,931.42
  5. Step 5: Solve for x
    x = 5,613,931.42/2,424.48
  6. Step 6: Final answer
    x = 2,315.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.