Home / 2,051.24-2,831.68-1,547.31

Finding the Fourth Proportional to 2,051.24, 2,831.68 and 1,547.31

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Solution

The fourth proportional to 2,051.24, 2,831.68 and 1,547.31 is: 2,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.24 : 2,831.68 = 1,547.31 : x
  2. Step 2: Convert to fraction form
    2,051.24/2,831.68 = 1,547.31/x
  3. Step 3: Cross multiply
    2,051.24x = 2,831.68 × 1,547.31
  4. Step 4: Simplify right side
    2,051.24x = 4,381,472.62
  5. Step 5: Solve for x
    x = 4,381,472.62/2,051.24
  6. Step 6: Final answer
    x = 2,136.01

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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.