Home / 1,721.04-2,580.27-626.32

Finding the Fourth Proportional to 1,721.04, 2,580.27 and 626.32

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Solution

The fourth proportional to 1,721.04, 2,580.27 and 626.32 is: 939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.04 : 2,580.27 = 626.32 : x
  2. Step 2: Convert to fraction form
    1,721.04/2,580.27 = 626.32/x
  3. Step 3: Cross multiply
    1,721.04x = 2,580.27 × 626.32
  4. Step 4: Simplify right side
    1,721.04x = 1,616,074.71
  5. Step 5: Solve for x
    x = 1,616,074.71/1,721.04
  6. Step 6: Final answer
    x = 939.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.