Home / 2,154.16-2,971.74-1,314.19

Finding the Fourth Proportional to 2,154.16, 2,971.74 and 1,314.19

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Solution

The fourth proportional to 2,154.16, 2,971.74 and 1,314.19 is: 1,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.16 : 2,971.74 = 1,314.19 : x
  2. Step 2: Convert to fraction form
    2,154.16/2,971.74 = 1,314.19/x
  3. Step 3: Cross multiply
    2,154.16x = 2,971.74 × 1,314.19
  4. Step 4: Simplify right side
    2,154.16x = 3,905,430.99
  5. Step 5: Solve for x
    x = 3,905,430.99/2,154.16
  6. Step 6: Final answer
    x = 1,812.97

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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.