Home / 1,563.71-2,145.99-1,416.08

Finding the Fourth Proportional to 1,563.71, 2,145.99 and 1,416.08

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Solution

The fourth proportional to 1,563.71, 2,145.99 and 1,416.08 is: 1,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.71 : 2,145.99 = 1,416.08 : x
  2. Step 2: Convert to fraction form
    1,563.71/2,145.99 = 1,416.08/x
  3. Step 3: Cross multiply
    1,563.71x = 2,145.99 × 1,416.08
  4. Step 4: Simplify right side
    1,563.71x = 3,038,904.19
  5. Step 5: Solve for x
    x = 3,038,904.19/1,563.71
  6. Step 6: Final answer
    x = 1,943.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.