Home / 2,870.16-4,328.19-2,831.14

Finding the Fourth Proportional to 2,870.16, 4,328.19 and 2,831.14

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Solution

The fourth proportional to 2,870.16, 4,328.19 and 2,831.14 is: 4,269.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.16 : 4,328.19 = 2,831.14 : x
  2. Step 2: Convert to fraction form
    2,870.16/4,328.19 = 2,831.14/x
  3. Step 3: Cross multiply
    2,870.16x = 4,328.19 × 2,831.14
  4. Step 4: Simplify right side
    2,870.16x = 12,253,711.84
  5. Step 5: Solve for x
    x = 12,253,711.84/2,870.16
  6. Step 6: Final answer
    x = 4,269.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.