Home / 1,970.02-2,718.77-1,130.96

Finding the Fourth Proportional to 1,970.02, 2,718.77 and 1,130.96

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Solution

The fourth proportional to 1,970.02, 2,718.77 and 1,130.96 is: 1,560.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.02 : 2,718.77 = 1,130.96 : x
  2. Step 2: Convert to fraction form
    1,970.02/2,718.77 = 1,130.96/x
  3. Step 3: Cross multiply
    1,970.02x = 2,718.77 × 1,130.96
  4. Step 4: Simplify right side
    1,970.02x = 3,074,821.26
  5. Step 5: Solve for x
    x = 3,074,821.26/1,970.02
  6. Step 6: Final answer
    x = 1,560.81

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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.