Home / 1,772.08-2,445.38-975.39

Finding the Fourth Proportional to 1,772.08, 2,445.38 and 975.39

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Solution

The fourth proportional to 1,772.08, 2,445.38 and 975.39 is: 1,345.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.08 : 2,445.38 = 975.39 : x
  2. Step 2: Convert to fraction form
    1,772.08/2,445.38 = 975.39/x
  3. Step 3: Cross multiply
    1,772.08x = 2,445.38 × 975.39
  4. Step 4: Simplify right side
    1,772.08x = 2,385,194.32
  5. Step 5: Solve for x
    x = 2,385,194.32/1,772.08
  6. Step 6: Final answer
    x = 1,345.99

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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.