Home / 1,117.02-1,541.26-651.18

Finding the Fourth Proportional to 1,117.02, 1,541.26 and 651.18

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Solution

The fourth proportional to 1,117.02, 1,541.26 and 651.18 is: 898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.02 : 1,541.26 = 651.18 : x
  2. Step 2: Convert to fraction form
    1,117.02/1,541.26 = 651.18/x
  3. Step 3: Cross multiply
    1,117.02x = 1,541.26 × 651.18
  4. Step 4: Simplify right side
    1,117.02x = 1,003,637.69
  5. Step 5: Solve for x
    x = 1,003,637.69/1,117.02
  6. Step 6: Final answer
    x = 898.50

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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.